Hydrotalcites as catalyst in suitable multicomponent synthesis of uracil derivatives
作者:Eliana Nope、Ángel G. Sathicq、José J. Martínez、Hugo Rojas、Gustavo Romanelli
DOI:10.1016/j.cattod.2020.12.029
日期:2021.7
activities; however, reports on their synthesis using heterogeneous catalysts are scarce. In this work, the multicomponent synthesis of uracil derivatives assisted by layered double hydroxides (LDH) was studied under green chemistry conditions. The incorporation of Ni2+ or Co2+ was successfully performed by co-precipitation method. The yields to uracil derivatives are associated with the presence of
尿嘧啶化合物参与广泛的生物活性;然而,关于使用非均相催化剂合成它们的报道很少。在这项工作中,在绿色化学条件下研究了层状双氢氧化物(LDH)辅助的尿嘧啶衍生物的多组分合成。Ni 2+或Co 2+的结合通过共沉淀法成功进行。当反应在无溶剂条件下进行时,尿嘧啶衍生物的产率与弱碱性位点的存在和试剂更好的相互作用有关。该反应途径涉及在苯甲醛和氰基乙酸乙酯之间形成烯酮,以及随后在碱性催化剂的存在下与尿素的反应。通过九个示例说明了此综合的范围。